[PATCH] D48420: [CodeGen} Avoid handling DBG_VALUE in LiveRegUnits::stepBackward

[Krzysztof Parzyszek via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL335233: [CodeGen] Avoid handling DBG_VALUE in LiveRegUnits::stepBackward (authored by kparzysz, committed by ).

Changed prior to commit:
  https://reviews.llvm.org/D48420?vs=152248&id=152283#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D48420

Files:
  llvm/trunk/lib/CodeGen/LiveRegUnits.cpp


Index: llvm/trunk/lib/CodeGen/LiveRegUnits.cpp
===================================================================
--- llvm/trunk/lib/CodeGen/LiveRegUnits.cpp
+++ llvm/trunk/lib/CodeGen/LiveRegUnits.cpp
@@ -46,7 +46,7 @@
   // Remove defined registers and regmask kills from the set.
   for (ConstMIBundleOperands O(MI); O.isValid(); ++O) {
     if (O->isReg()) {
-      if (!O->isDef())
+      if (!O->isDef() || O->isDebug())
         continue;
       unsigned Reg = O->getReg();
       if (!TargetRegisterInfo::isPhysicalRegister(Reg))
@@ -58,7 +58,7 @@
 
   // Add uses to the set.
   for (ConstMIBundleOperands O(MI); O.isValid(); ++O) {
-    if (!O->isReg() || !O->readsReg())
+    if (!O->isReg() || !O->readsReg() || O->isDebug())
       continue;
     unsigned Reg = O->getReg();
     if (!TargetRegisterInfo::isPhysicalRegister(Reg))


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